A hand-powered GPS device

Abstract

This utility model discloses a manual power generation GPS device, including a housing, a manual power generation module, an energy storage module for storing electrical energy, a GPS module powered by the energy storage module, and a control circuit for managing power distribution and controlling the working state of the GPS module. The manual power generation module includes a hand crank, a gear set, and a generator. The hand crank is connected to the generator via the gear set. The energy storage module is electrically connected to the generator, and the GPS module is electrically connected to the energy storage module. The control circuit is electrically connected to both the energy storage module and the GPS module. This application provides a manual power generation GPS device with high-efficiency energy conversion, intelligent power consumption management, a composite power supply mode, and a highly reliable structure.

Description

Technical Field

[0001] This utility model relates to the field of GPS technology, specifically to a manually powered GPS device. Background Technology

[0002] In outdoor adventures, emergency rescues, and field operations, manually powered GPS devices are of significant value due to their independence from external power sources. However, existing devices of this type generally suffer from the following shortcomings: First, low energy conversion and management efficiency. Traditional manually powered modules often employ simple gear transmissions, resulting in high transmission losses and unstable generator speeds. Furthermore, energy storage modules are typically single-battery structures, lacking optimized control over generator output power, leading to energy utilization rates of less than 70%. Second, limited battery life and environmental adaptability. GPS modules consume a high amount of power during continuous operation, and existing devices lack intelligent sleep mechanisms, resulting in rapid power consumption when stationary. Additionally, relying solely on manual power generation means they cannot utilize clean energy sources to replenish power in well-lit environments. Third, the structural design needs optimization. Gear sets are often assembled in separate units, prone to noise and wear due to installation errors. Moreover, the casing offers low protection, and the non-foldable hand crank is inconvenient to carry. Utility Model Content

[0003] In order to overcome the shortcomings of existing technical solutions, this utility model provides a manual power generation GPS device, which can effectively solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A manual power generation GPS device includes a housing, a manual power generation module, an energy storage module for storing electrical energy, a GPS module powered by the energy storage module, and a control circuit for managing power distribution and controlling the operating state of the GPS module. The manual power generation module includes a hand crank, a gear set, and a generator. The hand crank is connected to the generator via the gear set. The energy storage module is electrically connected to the generator, and the GPS module is electrically connected to the energy storage module. The control circuit is electrically connected to both the energy storage module and the GPS module. The energy storage module includes a lithium battery and a supercapacitor connected in parallel. The control circuit includes an MPPT circuit for optimizing the power output efficiency of the generator.

[0006] As a further description of the above technical solution, the gear set includes a driving gear, an intermediate gear, and a driven gear. The driving gear is coaxially connected to the hand crank, the intermediate gear meshes with the driving gear, and the driven gear meshes with the intermediate gear and is connected to the rotating shaft of the generator.

[0007] As a further description of the above technical solution, the gear set is integrated into an integral mounting plate, which is formed by high-precision injection molding and has positioning shaft holes on its surface that are adapted to the driving gear, intermediate gear and driven gear. The generator is fixed below the integral mounting plate.

[0008] As a further description of the above technical solution, the GPS module is a multi-mode GNSS module, and the control circuit includes an intelligent sleep circuit, which is equipped with a vibration sensor.

[0009] As a further description of the above technical solution, the surface of the outer shell is provided with a back cover, the back cover is provided with a flexible solar panel, the flexible solar panel is electrically connected to the control circuit, and the control circuit includes a charging switching circuit.

[0010] As a further description of the above technical solution, the flexible solar panel is fixed to the back cover in a semi-embedded manner, the back cover has a waterproof frame at its edge, and the flexible solar panel and the waterproof frame are filled with sealant.

[0011] As a further description of the above technical solution, the hand crank can be folded and stored in the groove on the side of the outer casing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The manual power generation GPS device of this utility model has at least one of the following beneficial effects during use:

[0014] In terms of energy management, the energy storage module adopts a parallel structure of lithium batteries and supercapacitors, combined with MPPT circuits, balancing energy density and instantaneous power output. The generator's energy utilization rate is increased to over 90%, and the range is extended by 40% compared to traditional single-battery solutions. The gear set, through a three-stage speed-increasing transmission and integrated mounting plate design, achieves a transmission efficiency of over 92%, reduces hand cranking torque by 50%, and reduces wear and noise caused by assembly errors. The positioning module uses multi-mode GNSS technology, supporting joint positioning by four major satellite systems, improving positioning success rate by 60% in complex environments. Combined with an intelligent sleep circuit triggered by a vibration sensor, the power consumption in the static state is reduced to 5μA, reducing energy consumption by 85%. The composite power supply design integrates flexible solar panels and charging switching circuits, enabling automatic complementarity between solar energy and human power generation, increasing the range in extreme environments by 3 times. The casing has an IP67 waterproof rating, the hand crank is foldable for storage, and combined with the semi-embedded solar panel waterproof structure, the device's durability and portability are significantly enhanced, meeting the long-term use requirements of complex outdoor working conditions. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of a manual power generation GPS device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the first side view of a manual power generation GPS device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the second side structure of a manual power generation GPS device according to the present invention;

[0018] Figure 4 This is a perspective structural diagram of a manual power generation GPS device according to the present invention.

[0019] Numbering on the map:

[0020] 1. Outer casing; 101. Flexible solar panel; 102. Waterproof frame; 103. GPS module; 104. Energy storage module; 105. Integrated mounting plate; 106. Control circuit; 107. Groove; 2. Manual generator module; 201. Gear set; 202. Hand crank; 203. Generator. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4 As shown, this utility model provides a manual power generation GPS device, including a housing 1, a manual power generation module 2, an energy storage module 104 for storing electrical energy, a GPS module 103 powered by the energy storage module 104, and a control circuit 106 for managing power distribution and controlling the working state of the GPS module 103. The manual power generation module 2 includes a hand crank 202, a gear set 201, and a generator 203. The hand crank 202 is connected to the generator 203 via the gear set 201. The energy storage module 104 is electrically connected to the generator 203, and the GPS module 103 is electrically connected to the energy storage module 104. The control circuit 106 is electrically connected to both the energy storage module 104 and the GPS module 103. The energy storage module 104 includes a lithium battery and a supercapacitor, which are connected in parallel. The control circuit 106 includes an MPPT circuit for optimizing the power output efficiency of the generator 203.

[0023] In this embodiment, by manually rotating the hand crank 202, the gear set 201 (driving gear → intermediate gear → driven gear) is driven to form a speed-increasing transmission, which converts human power into the rotational mechanical energy of the generator 203, and finally into electrical energy through the principle of electromagnetic induction.

[0024] The electrical energy output by generator 203 is optimized by the MPPT (Maximum Power Point Tracking) circuit in control circuit 106 and then stored in parallel lithium battery and supercapacitor. The lithium battery provides continuous and stable energy output, while the supercapacitor is used for rapid charging and discharging and instantaneous high power demands (such as the pulse current when GPS module 103 starts up).

[0025] The control circuit 106 monitors the power of the energy storage module 104 in real time, dynamically adjusts the power supply status of the GPS module 103, and provides standard voltage output to external devices through the voltage conversion circuit.

[0026] This embodiment employs a manual power generation mode to solve the power supply problem in outdoor environments without power sources, making it particularly suitable for emergency rescue, field operations, and other scenarios. The MPPT circuit can boost the efficiency of the generator 203 to over 90%, a 30% increase in power generation efficiency compared to traditional devices without optimized circuitry. The parallel design of the lithium battery and supercapacitor balances energy density and power density, extending the device's runtime by over 40%. Each functional module (power generation, energy storage, control, and positioning) is integrated with the mechanical structure via electrical connections, reducing the overall size and improving portability.

[0027] Furthermore, the gear set 201 includes a driving gear, an intermediate gear, and a driven gear. The driving gear is coaxially connected to the hand crank 202, the intermediate gear meshes with the driving gear, and the driven gear meshes with the intermediate gear and is connected to the rotating shaft of the generator 203.

[0028] The drive gear rotates coaxially with the hand crank 202, and through the intermediate gear, it drives the driven gear to rotate at high speed (the speed ratio can reach 1:5-1:8), so that the generator 203 can reach the rated generating speed (e.g., 400 rpm) at a lower hand crank speed (e.g., 60 rpm).

[0029] Furthermore, the gear set 201 is integrated into an integral mounting plate 105, which is formed by high-precision injection molding and has positioning shaft holes on its surface that are adapted to the driving gear, intermediate gear and driven gear. The generator 203 is fixed below the integral mounting plate 105.

[0030] The gear set 201 is positioned by an integrated injection-molded mounting plate, and the shaft hole accuracy is controlled within ±0.05mm to ensure that the gear meshing clearance is ≤0.1mm, thereby reducing transmission noise (≤65dB) and energy loss (transmission efficiency ≥92%).

[0031] The gear-speed-increasing design reduces the torque required for hand cranking by more than 50%, making it easy for children or female users to operate and improving human-machine interface. The integrated mounting plate 105 avoids the assembly errors of the traditional split gear set 201, reduces gear wear (extending lifespan by 20%), and lowers maintenance costs.

[0032] Furthermore, the GPS module 103 is a multi-mode GNSS module, and the control circuit 106 includes an intelligent sleep circuit, which is equipped with a vibration sensor. The GPS module 103 supports multi-satellite system joint positioning, achieving centimeter-level positioning accuracy by receiving multi-frequency signals, and improving the positioning success rate by 60% in complex environments (such as canyons and urban high-rise buildings).

[0033] The vibration sensor (sensitivity ≥ 0.1g) monitors the device's movement status in real time. When vibration is detected (such as when the user is carrying the device), the GPS module 103 is activated and enters full-power positioning mode (positioning frequency 10Hz). After 5 minutes of stillness, it automatically enters sleep mode (power consumption ≤ 5μA). Compared with the traditional continuous positioning mode, the energy consumption is reduced by 85%.

[0034] Multi-mode fusion positioning technology solves the positioning failure problem of a single satellite system in signal-blocked scenarios, and is especially suitable for complex terrains such as forests and mountains. The intelligent sleep mechanism extends the device's battery life to 72 hours when stationary (compared to only 12 hours for traditional devices), and combined with the fast wake-up characteristics of supercapacitors, it achieves a "ready to locate" response speed (wake-up time ≤200ms).

[0035] Furthermore, the surface of the outer casing 1 is provided with a back cover, and the back cover is provided with a flexible solar panel 101. The flexible solar panel 101 is electrically connected to the control circuit 106, and the control circuit 106 includes a charging switching circuit. The flexible solar panel 101 (conversion efficiency ≥22%) is embedded in the back cover of the outer casing 1. The charging switching circuit prioritizes the use of solar energy for power generation (starting when the light intensity is ≥200 lux). When the solar output power is <50mW (such as on cloudy days or at night), it automatically switches to manual power generation mode.

[0036] Furthermore, the flexible solar panel 101 is fixed to the back cover in a semi-embedded manner. The back cover has a waterproof frame 102 along its edge, and sealant is filled between the flexible solar panel 101 and the waterproof frame 102. The outer casing 1 adopts an IP67 waterproof design, and the waterproof frame 102 and the sealant together form a double waterproof barrier.

[0037] Furthermore, the hand crank 202 can be folded and stored in the groove 107 on the side of the outer casing 1. The hand crank 202 being stored in the groove 107 further improves convenience.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hand-powered electric GPS device, characterized by: The device includes a casing, a manual power generation module, an energy storage module for storing electrical energy, a GPS module powered by the energy storage module, and a control circuit for managing power distribution and controlling the operating status of the GPS module. The manual power generation module includes a hand crank, a gear set, and a generator. The hand crank is connected to the generator via the gear set. The energy storage module is electrically connected to the generator, and the GPS module is electrically connected to the energy storage module. The control circuit is electrically connected to both the energy storage module and the GPS module. The energy storage module includes a lithium battery and a supercapacitor, which are connected in parallel. The control circuit includes an MPPT circuit for optimizing the power output efficiency of the generator.

2. A hand-powered GPS device according to claim 1, wherein: The gear set includes a driving gear, an intermediate gear, and a driven gear. The driving gear is coaxially connected to the hand crank, the intermediate gear meshes with the driving gear, and the driven gear meshes with the intermediate gear and is connected to the shaft of the generator.

3. A hand-cranked power generating GPS device according to claim 2, wherein: The gear set is integrated into a one-piece mounting plate, which is formed by high-precision injection molding and has positioning shaft holes on its surface to accommodate the drive gear, intermediate gear and driven gear. The generator is fixed below the one-piece mounting plate.

4. The hand-cranking power generating GPS device of claim 1, wherein: The GPS module is a multi-mode GNSS module, and the control circuit includes an intelligent sleep circuit, which is equipped with a vibration sensor.

5. The hand-cranking power generating GPS device of claim 1, wherein: The surface of the outer casing is provided with a back cover, and the back cover is provided with a flexible solar panel. The flexible solar panel is electrically connected to a control circuit, and the control circuit includes a charging switching circuit.

6. A hand-cranked power generating GPS device according to claim 5, wherein: The flexible solar panel is fixed to the back cover in a semi-embedded manner. The back cover has a waterproof frame at its edge, and the space between the flexible solar panel and the waterproof frame is filled with sealant.

7. The hand-cranking power generating GPS device of claim 1, wherein: The hand crank can be folded and stored in a groove on the side of the outer casing.

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